Oil-cup



UNITED STATES,

PATENT OFFICE.

CONSTANT BOOTH AND TOM. BRABSON, OF BROOKLYN, NE\V YORK.

OIL-CUP.

SPECIFICATION forming part of Letters Patent No. 433,069, dated July 29, 1890.

Application filed October 11, 1889. Serial No. 326,748. (No model.)

To all whom, it may concern:

Be it known that we, CONSTANT BOOTH and TOM. BRABsON, both citizens of the United States, residing in Brooklyn, Kings county, New York, have invented certain Improvements in Oil-Cups, of which the following is a specification.

Our invention relates to oil-cups for e11- gine-cylinders and the like, where oil is to be introduced into a chamber containing a fluid under pressure, and particularly to that class of such oil-cups wherein the aperture through which the oil passes from the oil-chamber to the cylinder is controlled by a valve and a stem which passes down through a stuffingbox in the cap of the oil-chamber.

The object of our invention is to improve the construction of this class of oil-cups, and to so modify the construction that the oil holder or receptacle may be cast in one piece. This mode of construction not only effects a material economy in the manufacture, but it renders the cup far more lasting and durable, and obviates the formation of a joint in the body, through which the oil is liable to leak.

Our invention will be fully described hereinafter, and its novel features carefully defined in the claim.

In the accompanying drawings, serving to illustrate our invention, Figure l is an axial section of an oil-cup embodying our improvements, and Fig. 2 is a transverse section of the same in the plane indicated by line 2 2 in Fig. 1.

Let a represent the oil holder or receptacle of the cup, which may have any convenient form. This holder, which is integral or cast in one piece, has a screw-nipple 1), whereby the cup may be screwed into the steam-chest cover or other part, and an eduction-passage c in said nipple, through which the oil flows from the holder to the chest. The inner end of this passage 0 is slightly coned, in order to form a seat for the valve (Z. The stem of this valve is screw -threaded and screws through a bridge a, formed in and extending across the oil-chamber. The valve is screwed down to its seat, as in other oil-cups of this character.

In order to control the valve (1 while the cup is closed, the stem cl of the valve is prolonged and extends up and passes out through a stufling-box e in the screw-cap g, which closes the filling-aperture in the holder a. 0n the outer end of the stem (1 is a suitable handle or hand-wheel d, for manipulating the valve. The stem (1 being in one or integral with the valve (Z and screwing through the bridge a, it will be obvious that when the valve is closed, as it must be when filling the cup with oil, the cap g cannot be wholly detached from the cup; but when unscrewed it is slipped up on the stem of the valve far enough to permit of filling the holder with oil. hen the holder is full, the cap is slipped down to place and screwed down tight. A packing-ring h in the cap 9 serves to make the joint steam-tight. When the cap g has been screwed down, the valve d will be raised from its seat by rotation of its stem, as will be well understood. The bridge a, so called, may be simply a lug projecting from the inner face of the holder at.

Preferably the valve (Z will be formed integrally with its stem (1', and in any case the valve and its long stem will be fixedly secured together, so that the stem cannot be detached from the valve while the latter is seated. The handle (1 prevents the cap 9 from being slipped off the upper end of the valvestem.

\Ve are aware that it is not new to construct oil-cups of this general character, in which the oil-holder is composed of two parts screwed together; but these cups have not, so far as we are aware, come into use, partly for the reason that the construction is not economical and partly for the reason that the leakage of oil through the screws has not been sufficiently guarded against. In our cup both the valve-stem and the cap have packed joints and the body and nipple of the oil-holder are integral.

Ilaving thus described our invention, we claim The combination, to form an oil-cup, of the oil-holder a, provided with a nipple b, an outlet 0 therein, and a bridge a, having a screwthreaded aperture in it to receive the valvestem, said holder and nipple being integral, our names in the presence of two subscribing a packed screw-cap 9, provided with a stuffwitnesses.

ingbox, through which the valve-stem passes, CONSTANT W. BOOTH. the valve (1, the screw-threaded valve-stein d, TOM. BRABSON. 5 and the handle (1" thereon, all arranged and Vitnesses:

operating substantially as set forth. HENRY CONNETT,

In witness whereof we have hereunto signed JOHN D. OAPLINGER. 

